Joseph h



` y UNITED-TSMUS,

To all whom itmay concern:r f

PATENTV i r QFFIGE. l

., Josera 'Hg BARKER, .or "oInoINNAfrI, OHIO;

srncrrrcnrrroiv forming percer Letters fatele No. 224,377, dated Fbmary"1o,^ 1s8o.

Application led'Mareh 28, 1879.

Amy invention relates to make and use it, reference being had to the accompanyingdrawwings, .forming part of this specification, in

which- Figure l is a perspective view of the spring complete. Fig. 2 is a similar view of the adjustable fastening detached from the spring. Fig. 3 is a longitudinal section of the adjusta- .ble fastening-head and bracket; and Fig. 4 is an elevation of the adjustable fastening appliedto a mandrel, and showing the position of the wire preparatoryv to forming the spring. I.

Similar letters of reference denote the same partsin the several igures of the drawings.

This invention relates to door and gate springs, and has forits object to furnish such springs in which the angular tension-adjusting head, `its supporting bracket, and the coiled spring are inseparably and perm auently;

connected together; and the invention consists in a bracket through which passes a cylindrical stud on the end of an angular head,

the latter being provided above the bracket.

with two angular parallel lateral lian ges, and the stud being provided, below the bracket, with an aperture, in which one end of the coiled spring is secured, a pin being arranged between the annular lianges which inclose the angular portion lof* the head, and bearing against the vertical portion of the bracket fory holding the angular head in position, the con,- struction being such, as more particularly hereinafter described, that the angular head, bracket, and coiled` spring are inseparably.

and permanently connected together, and such parts form a homogeneous structure, rendering it impossible to accidentally separate the spring-head and bracket, and thereby the loss of either part is avoided.

In the accompanying drawings, A represents the spring, made in spiral form, of the proper-sized wire, secured at one end by a cleat,

B, andat its other end to a head or stud, C,

" which passes through a bracket, D, in which it turns freely. The cleat B is cast with a recess inits under side, which receives a loop formed at the end of the spring in lsuch position that the retaining-screw, by which the cleat is secured to the door or jamb, passes yalso through the loop of the spring and secures both parts in place together.

The stud C vis made with a lateral opening, c, to receive the opposite end of the spring and hold it in place. The outer end of the stud is 'an angular head, E, which, when the bracket is screwed to a door or jamb, is held in place and prevented from turning by'a pin, p, which is passed between the two flanges g g, constituting part of the head, and engages one of the straight faces which form the,periphery of the head between the anges and the base of the bracket.

The spring having been applied to a door,

i if it shouldl become necessary to increase or diminish its tension, a small wrench, which accompanies the attachment, is iitted over the supplemental head or boss h, by which the head can be turned in either direction, after removing the locking-pin Ato set the spring, as may be desired, when the locking-pin is again replaced. Thus a spring which has become weakened bylong use can be easily adjusted to increase its force, or the force of the too powerful spring diminished. Thus the force of the spring may be adjusted to the resistance of the door to any desired degree of tension.

The essential difference in myinvention from the ordinary door or gate spring consists in providing the head E with two parallel annular lian ges, g, with the angular portion betwee/ them, and providing the stud C with an perture, o, and after said stud is passed rough the bracket,with the lower one of the flanges gresting on thebracket, securing the end of the coiled spring in said aperture, whereby the head, bracket, andspring are inseparably and permanently connected, and such parts fform 'a homogeneous structure, rendering it IOO one of the centers, with its other end engaging with a mandrel, l, as the other center. A suitable piece of wire being provided to form the spring, one end of it is inserted in the hole c in the side of the stud C, and as the mandrel 1s then rotated the wire is spun into a spring of the proper length, iirst being bent at a right angle, where it emerges from the socket c, and spun closely upon the head C for at least one entire revolution.

Having fully described my invention, what I clai1n,'and desire to secure by Letters Patent, is-

The angular head E, constructed with the two parallel annular ilanges g g, and cylindrical stud C, having the aperture e, in combination with the right-angled bracket D, having a circular aperture, through which the cylindrical stud passes, with the lower ilange, g, resting on the bracket, and the coiled spring A, having its end secured within the aperture c beneath the bracket, the whole constructed substantially as shown, whereby the angular head, bracket, and spring are permanently and inseparably connected together, and the parallel flanges g serve to receive the lockingpinp between them and theface of the bracket, as set forth.

In testimony whereof I have hereunto set lny hand this 17th day of March, 1879.

JOSEPH H. BARKER. Witnesses:

L. M. HosEA, EDWARD GURNEY. 

